51607505 has 8 divisors (see below), whose sum is σ = 61968192. Its totient is φ = 41259888.

The previous prime is 51607483. The next prime is 51607511. The reversal of 51607505 is 50570615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51607505 - 2¹⁴ = 51591121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11492 + ... + 15338.

It is an arithmetic number, because the mean of its divisors is an integer number (7746024).

Almost surely, 2^51607505 is an apocalyptic number.

It is an amenable number.

51607505 is a deficient number, since it is larger than the sum of its proper divisors (10360687).

51607505 is a wasteful number, since it uses less digits than its factorization.

51607505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6535.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 51607505 is about 7183.8363706309. The cubic root of 51607505 is about 372.3096455463.

The spelling of 51607505 in words is "fifty-one million, six hundred seven thousand, five hundred five".